[Bug middle-end/30201] gcc doesn't unroll nested loops

[rguenth at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=30201

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
      Known to work|                            |14.2.0
             Status|NEW                         |RESOLVED
         Resolution|---                         |FIXED

--- Comment #19 from Richard Biener <rguenth at gcc dot gnu.org> ---
GCC does unroll the loop nest in the testcase.  I checked GCC 14 with -O2
-fopt-info:

...
t.C:28:27: optimized: loop with 2 iterations completely unrolled (header
execution count 268435458)
t.C:27:23: optimized: loop with 2 iterations completely unrolled (header
execution count 89478486)
...

so the reported issue is fixed.  We're also good enough to elide the whole
benchmark (but that's besides the point).